Description
Overview
The Factory Fuel Filter Housing Delete Kit from FASS Fuel Systems is purpose-built for 2019-2023 Cummins 6.7L trucks and SUVs that have already stepped up to an aftermarket fuel filtration system. Once a system such as the FASS Signature Series is installed, the factory fuel filter housing becomes redundant hardware taking up space in the engine bay. This delete kit removes that factory housing entirely and replaces it with a precision-machined delete block, cleaning up the engine compartment while retaining critical fuel system functions like water-in-fuel detection and CP3 return routing.
Why Delete the Factory Housing
Running an aftermarket filtration system alongside the stock fuel filter housing is unnecessary once true filtration duty has been moved off the engine. The FASS delete block takes over where the factory housing left off, giving your 6.7L Cummins a cleaner, more purposeful engine bay layout without sacrificing fuel system integrity. For trucks running dual CP3 pumps, the delete block also opens up an additional return port, something the stock housing wasn’t designed to accommodate.
Built to Last
Machined from 6061 T-6 billet aluminum and finished in silver, this delete block is engineered to hold up under the demands of a diesel fuel system while resisting corrosion and wear over the long haul. It’s sold as a complete kit, including new banjo bolt sealing washers to ensure a proper, leak-free seal at every connection point, plus a -6 ORB plug for trucks running a single CP3 setup.
The delete block also incorporates a dedicated port for your factory water-in-fuel (WIF) sensor. Simply thread the WIF sensor into the port on the block, and it continues to function as intended, eliminating the false water-in-fuel warning lights that can pop up when the factory housing is removed without a proper replacement solution.
Highlights
- Eliminates the factory fuel filter housing once an aftermarket filtration system, such as FASS Signature Series, is installed
- Machined from 6061 T-6 billet aluminum for durability in a demanding under-hood environment
- Includes new banjo bolt sealing washers and a -6 ORB plug for single CP3 applications
- Built-in WIF sensor port prevents false water-in-fuel warning lights
- Provides an additional return port for trucks running dual CP3 pumps
- Fits 2019-2023 Cummins 6.7L trucks and SUVs
Fitment and Compatibility
This delete kit is designed specifically for 2019-2023 Cummins 6.7L trucks and SUVs. It is intended for use exclusively with an aftermarket fuel filtration system already in place, such as the FASS Signature Series, and should not be installed on a truck that hasn’t been upgraded with a proper aftermarket filtration solution.
Sold as a complete kit, this delete block is the finishing touch for any 6.7L Cummins that’s moved past the factory filtration setup, tidying up the engine bay while keeping your WIF sensor functional and, on dual CP3 applications, adding the return capacity your fuel system needs.






